Speaker
            Dr
    Shu Zhang
            
                (Institute of High Energy Physics)
        
        
    Summary
The hard X-ray observations will allow us to explore the 
specific properties of 
the high energy sources.  Some open questions like if there 
exists blue-shifted 
511 keV in jet and what is the component of the jet bulk etc. 
can be well 
addressed.  Any features detected from the newly 
discovered unknown sources 
might be regarded as pieces  to recover a puzzle of   source 
nature.
Primary author
        
            
                
                        Dr
                    
                
                    
                        Shu Zhang
                    
                
                
                        (Institute of High Energy Physics)